PHP matching all files in an Array with the same filename but different extensions-CodePudding

In this question PHP file listing multiple file extensions, the answer is given for a glob directory, does anyone have a succinct solution similar to the one given but where the files are contained in an array? For example,

    $fileType1_ext = array("jpg", "png","bmp", "etc");
    $fileType2_ext = array("avi", "mov", "mp4", "etc");
    $files = array("filename1.jpg", "filename2.png", "filename3.bmp", "filename1.avi", "filename2.mov", "filename3.mp4","filename2.axy");

What I would like to see is all the files that have the same name irrespective of the extension:

   `$pairedFiles[0] = array("filename1.jpg", "filename1.avi");`
   `$pairedFiles[1] = array("filename2.png", "filename2.avi","filename2.axy");
    etc..`

What I am currently doing, and it's messy, and it is pointless listing the code, as it is not the way I would prefer to do it but is based on getting extension of the set $files into $fileExt array and then using

$typeIndex = array_search($filesExt, $fileType1_ext);

which requires multiple loops, stripping file names etc.

CodePudding user response：

I would use a foreach to loop over the array to build a multidimensional array using the basename as the index. From there you can filter out arrays with less than 2 items.

$fileType1_ext = array("jpg", "png","bmp", "etc");
$fileType2_ext = array("avi", "mov", "mp4", "etc");
$files = array("filename1.jpg", "filename2.png", "filename3.bmp", "filename1.avi", "filename2.mov", "filename3.mp4","filename2.axy","filename4.mp4");

$matches = [];

foreach( $files as $filename ) {
    $base_name = substr($filename, 0, strrpos($filename, '.'));
    $matches[$base_name][] = $filename;
}

// Filter out arrays with less than 2 matches
$filtered_matches = array_filter($matches, function($array) {
    return count($array) >= 2;
});

CodePudding user response：

A possible solution would be to inspect your $files array and generate a list of filenames without the extensions. Then use a pattern matching function to perform a lookup of the $files array and perform a search.

Perhaps something like the following:

$files = array(
    "filename1.jpg", 
    "filename2.png", 
    "filename3.bmp", 
    "filename1.avi", 
    "filename2.mov", 
    "filename3.mp4",
    "filename2.axy"
);

$filenames = array_unique(
    array_map(function ($value) {
        return explode('.', $value)[0];
    }, $files)
);

foreach ($filenames as $filename) {
    $result[] = preg_grep("/$filename/", $files);
}